400729312

素因数分解:

$2^5\times {\mathrm{31}}^2\times {\mathrm{83}}^1\times {\mathrm{157}}^1$

素因数の和:312

約数の個数: 72

約数和(自身を含む): 830283048

約数和(自身を除く): 429553736

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 83, 124, 157, 166, 248, 314, 332, 496, 628, 664, 961, 992, 1256, 1328, 1922, 2512, 2573, 2656, 3844, 4867, 5024, 5146, 7688, 9734, 10292, 13031, 15376, 19468, 20584, 26062, 30752, 38936, 41168, 52124, 77872, 79763, 82336, 104248, 150877, 155744, 159526, 208496, 301754, 319052, 403961, 416992, 603508, 638104, 807922, 1207016, 1276208, 1615844, 2414032, 2552416, 3231688, 4828064, 6463376, 12522791, 12926752, 25045582, 50091164, 100182328, 200364656, 400729312]

約数ペア:

[(1, 400729312), (2, 200364656), (4, 100182328), (8, 50091164), (16, 25045582), (31, 12926752), (32, 12522791), (62, 6463376), (83, 4828064), (124, 3231688), (157, 2552416), (166, 2414032), (248, 1615844), (314, 1276208), (332, 1207016), (496, 807922), (628, 638104), (664, 603508), (961, 416992), (992, 403961), (1256, 319052), (1328, 301754), (1922, 208496), (2512, 159526), (2573, 155744), (2656, 150877), (3844, 104248), (4867, 82336), (5024, 79763), (5146, 77872), (7688, 52124), (9734, 41168), (10292, 38936), (13031, 30752), (15376, 26062), (19468, 20584)]